881760-83-4

Upstream product

• 51626-33-6 5-chloro-3-methyl-1-phenyl-1H-pyrazole-4-carbonitrile 
• 89-25-8 edaravone 
• 51626-34-7 5-chloro-3-methyl-1-phenyl-1H-pyrazole-4-carbaldehyde oxime 
• 947-95-5 5-chloro-4-formyl-3-methyl-1-phenyl-1H-pyrazole 
• 881760-41-4 3-methyl-1-phenyl-4-(pyrrol-1-yl)-1H-thieno[2,3-c]pyrazole-5-carbohydrazide 
• 881760-24-3 methyl 4-amino-3-methyl-1-phenyl-1H-thieno[2,3-c]pyrazole-5-carboxylate 
• 881760-76-5 N¹-(3-methyl-1-phenyl-4-(pyrrol-1-yl)-1H-thieno[2,3-c]pyrazole-5-oyl)-N⁴-phenylthiosemicarbazide 

Relevant academic research and scientific papers

Thieno[2,3-c]pyrazoles and related heterocycles

5-Chloro-3-methyl-1-phenyl-1H-pyrazole-4-carboxaldehyde (1) was converted, via the oxime 2, into the chloronitrile 3. Treatment of compound 3 with methyl thioglycolate gave the novel methyl 4-amino-3-methyl-1-phenyl-1H-thieno [2,3-c]pyrazole-5-carboxylate